Local Denial of Service Vulnerability in IBM AIX and PowerVM
CVE-2026-16897

4.4MEDIUM

Key Information:

Vendor

IBM
Status
Aix
Powervm ViOS
Vendor
CVE Published:
19 August 2026

What is CVE-2026-16897?

A vulnerability exists in IBM AIX versions 7.2 and 7.3 as well as IBM PowerVM VIOS 4.1, where a local attacker can exploit an out-of-bounds write condition. This exploitation may lead to a denial of service, potentially compromising the availability of services and impacting system performance. Users of the affected products are encouraged to review the IBM advisory and apply any available patches to mitigate the risk.

Affected Version(s)

AIX 7.2

AIX 7.3

PowerVM VIOS 4.1

References

https://www.ibm.com/support/pages/node/7283858
vendor-advisorypatch

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CVE-2026-14970, CVE-2026-15061, CVE-2026-15078, CVE-2026-15065, CVE-2026-15068 were reported to IBM by Oneconsult AG (https://oneconsult.com/).
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